We are very sad to say that our good friend and Kidd’s Kid Damon Billeck has passed away.

Damon is a 12-year-old who lost his arm due to osteosarcoma. They thought they had his cancer beat, but it came back in January.

Damon touched many lives and did so much good with his short time on this earth. His strength and attitude are inspirational.

Damon's dad made the announcement Tuesday (4/3) in a tweet saying, "Agent Damon is down! (line from Avengers) Damon lost his battle with Cancer at 11:26 am. Thank you for the Love, prayers & support everyone!"

Byran ended the tweet saying, "Damon was the TRUE embodiment of Captain America" and tagged Avengers actors Chris Evans, Mark Ruffalo and Jeremy Renner.

Chris Evans replied saying, "Damon had the only strength I pretend to have onscreen. He was a true warrior. Brave, selfless, compassionate, and proud. I feel so grateful for his friendship. Sending all my love to you and your family, Brian."

Today on the show we revisit some of our favorite moments with Damon. Check out his story in the video above and hear exactly why we loved Damon in the player below:

GoFundMe account has been set up for Damon.

To help other kids with stories like Damon's, donate any time at KiddsKids.com.

Damon on the Kidd's Kids Trip at Disney World